(Modeling) Solve the problem.
Newspaper Ad Revenue The table lists U.S. print newspaper advertising revenue (in billions of dollars).
Year | 2006 | 2008 | 2010 | 2012 |
Revenue ($ billions) | 48 | 35 | 22 | 10 |
(a) Find the point–slope form of the line that passes though (2006, 48) and (2010, 22). Let (x1, y1) be (2006, 48).
(b) Find the point–slope form of the line that passes though (2008, 35) and (2012, 10). Let (x1, y1) be (2008, 35).
(c) Interpret the slope of the line from part (b).
(d) Use equations from parts (a) and (b) to predict the revenue for 2009.
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